11312320230 has 48 divisors (see below), whose sum is σ = 30690822240. Its totient is φ = 2885460864.

The previous prime is 11312320213. The next prime is 11312320237. The reversal of 11312320230 is 3202321311.

11312320230 is a `hidden beast` number, since 1 + 1 + 312 + 320 + 2 + 30 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11312320237) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2730375 + ... + 2734514.

It is an arithmetic number, because the mean of its divisors is an integer number (639392130).

Almost surely, 2^11312320230 is an apocalyptic number.

11312320230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11312320230 is an abundant number, since it is smaller than the sum of its proper divisors (19378502010).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11312320230 is a wasteful number, since it uses less digits than its factorization.

11312320230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5464925 (or 5464922 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 11312320230 its reverse (3202321311), we get a palindrome (14514641541).

The spelling of 11312320230 in words is "eleven billion, three hundred twelve million, three hundred twenty thousand, two hundred thirty".